Year and Degree2009, Master of Science in Biomedical Sciences (MSBS), University of Toledo, College of Medicine.

Abstract

The purpose of this project was to develop an effective and time-efficient plan checkingprocedure using a combination of ionization chambers and film. A 0.6 cc volume thimbleionization chamber, Kodak X-Omat V (XV) film and Kodak Extended Dose Range (EDR2) filmwere used. Three IMRT plans (one prostate, one head & neck and one brain) were validated.The plans were transferred from the patient geometry to a 30 cm x 30 cm x 20 cm solid waterphantom. The ionization chamber was calibrated and used to measure dose delivered to thephantom. The XV film was used to compare planar dose distributions and the EDR2 film wasused to compare axial dose distributions to the distributions computed by the treatment planningsystem. The tests set forth in this procedure provide adequate evaluation of IMRT treatmentplans.